*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: #ecfeff;
  background: linear-gradient(135deg, #0f766e 0%, #0e7490 55%, #1e3a8a 100%);
  line-height: 1.6;
}

.hero {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1.25rem;
}

.deco {
  width: min(180px, 50vw);
  height: auto;
  margin-bottom: 1.5rem;
}

h1 {
  font-size: clamp(2rem, 6vw, 3.5rem);
  margin: 0 0 0.5rem;
  letter-spacing: 0.02em;
}

p {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  margin: 0 0 1.75rem;
  color: #ccfbf1;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: 999px;
  background: #5eead4;
  color: #134e4a;
  font-weight: 700;
  text-decoration: none;
}

.btn:hover,
.btn:focus-visible {
  background: #99f6e4;
  outline: 3px solid #ecfeff;
  outline-offset: 3px;
}